21 Which equation is equivalent to 2 x + 4? A x + x + 1 + 1 + 1
B 1 + 1 + 1 + x
C x + x + x + x
D
+ x +4

Which is the graph of f(x) = (4)x? image for option 1 image for option 2 image for option 3 image for option 4

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)

The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!